Tehuantepec Forecast
August 28, 2026, 2:00 pm (UTC: -05:00)
Subject: Tehuantepec Forecast
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This forecast has not been reviewed. It was generated from an automatic model.
.WARNINGS.
...HURRICANE WARNING...
.TROPICAL STORM KARINA NEAR 13.2N 115.0W 999 MB AT 1500 UTC AUG 28
MOVING NW OR 315 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55
KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM E SEMICIRCLE AND 0 NM W
SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 240 NM NE QUADRANT...210 NM
SE QUADRANT...120 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH SEAS
TO 6.0 M. ELSEWHERE FROM FROM 08N TO 16N BETWEEN 110W AND 118W WINDS
20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF THE AREA FROM 04N TO
18N BETWEEN 105W AND 118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
MIXED SWELL.
.24 HOUR FORECAST HURRICANE KARINA NEAR 15.6N 117.8W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN
190 NM E SEMICIRCLE...50 NM SW QUADRANT AND 100 NM NW QUADRANT. SEAS
4 M OR GREATER 180 NM NW AND 270 NM SE SEMICIRCLES WITH SEAS TO 8 M.
ELSEWHERE WITHIN 240 NM OF CENTER...EXCEPT 300 NM SE QUADRANT WINDS
20 TO 33 KT. SEAS 3.0 TO 4.0 M. FROM 08N TO 12N BETWEEN 112W AND
122W SW TO W WINDS 20 TO 25 KT. SEAS 3.0 TO 4.0 M IN MIXED SWELL.
REMAINDER OF THE AREA FROM 07N TO 20N BETWEEN 110W AND 122W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE KARINA NEAR 17.6N 121.4W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 180 NM NE QUADRANT...160 NM SE QUADRANT...60 NM SW
QUADRANT...AND 100 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM
N AND 150 NM S SEMICIRCLES WITH SEAS TO 9.5 M. ELSEWHERE WITHIN 240
NM OF CENTER...EXCEPT 300 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 3.0
TO 4.0 M. REMAINDER OF THE AREA FROM 10N TO 24N BETWEEN 112W AND
126W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 IN MIXED SWELL.
...TROPICAL STORM WARNING...
.TROPICAL STORM LOWELL NEAR 12.5N 132.8W 1003 MB AT 1500 UTC AUG 28
MOVING NNW OR 330 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS
50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM NE QUADRANT...70 NM SE
QUADRANT...60 NM SW QUADRANT...AND 50 NM NW QUADRANT. ELSEWHERE
WITHIN 90 NM N AND 180 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 2.5
TO 3.5 M.
.24 HOUR FORECAST TROPICAL STORM LOWELL NEAR 12.8N 134.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM S SEMICIRCLE...30 NM NE QUADRANT AND 50 NM NW
QUADRANT. ELSEWHERE WITHIN 180 NM NW AND 120 NM SE SEMICIRCLES WINDS
20 TO 33 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST TROPICAL STORM LOWELL NEAR 13.2N 137.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE. ELSEWHERE
WITHIN 210 NM NW AND 120 NM SE SEMICIRCLES WINDS 20 TO 33 KT. SEAS
2.5 TO 3.5 M.
.N OF 13.5N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
FRESH TO STRONG WINDS AND ROUGH SEAS ASSOCIATED WITH THE OUTER PERIPHERY
OF KARINA ARE REACHING THE REVILLAGIGEDO ISLANDS. MARINE CONDITIONS
WILL CONTINUE TO DETERIORATE IN THE THIS AREA, AND TROPICAL STORM
CONDITIONS ARE POSSIBLE TONIGHT AND SAT. FRESH TO STRONG N TO NE GAP
WINDS PERSIST ACROSS THE GULF OF TEHUANTEPEC. IN THE GULF OF
CALIFORNIA, LIGHT TO GENTLE WINDS AND SLIGHT SEAS ARE OCCURRING.
ELSEWHERE ACROSS THE MEXICAN OFFSHORE WATERS, GENTLE TO MODERATE
WINDS AND 3 TO 5 FT SEAS PREVAIL.
FOR THE FORECAST, TROPICAL STORM KARINA IS NEAR 13.2N 115.0W AT 8 AM
PDT, AND IS MOVING NORTHWEST AT 9 KT. MAXIMUM SUSTAINED WINDS
ARE 45 KT WITH GUSTS TO 55 KT, AND THE MINIMUM CENTRAL PRESSURE
IS 999 MB. KARINA WILL MOVE TO 14.1N 116.0W THIS EVENING,
STRENGTHEN TO A HURRICANE NEAR 15.6N 117.8W SAT MORNING, 16.7N
119.6W SAT EVENING, 17.6N 121.4W SUN MORNING, 18.0N 123.0W SUN
EVENING, AND 18.3N 124.7W MON MORNING. KARINA WILL CHANGE LITTLE
IN INTENSITY AS IT MOVES TO NEAR 19.1N 127.8W EARLY TUE. FRESH
TO STRONG NORTHERLY GAP WINDS WILL CONTINUE TO PULSE IN THE GULF
OF TEHUANTEPEC THROUGH EARLY SUN WITH LOCALLY ROUGH SEAS THERE AT
TIMES, THEN PULSING TO MODERATE TO FRESH THEREAFTER. A SURGE OF
FRESH TO LOCALLY STRONG SOUTHEASTERLY WINDS IS POSSIBLE IN THE
NORTHERN GULF OF CALIFORNIA TONIGHT THROUGH SUN NIGHT. LOOKING
AHEAD, ANOTHER AREA OF LOW PRESSURE IS FORECAST TO FORM THIS
WEEKEND WELL TO THE SOUTH OF SOUTHWESTERN MEXICO. ENVIRONMENTAL
CONDITIONS APPEAR FAVORABLE FOR GRADUAL DEVELOPMENT OF THIS
SYSTEM, AND A TROPICAL DEPRESSION IS LIKELY TO FORM EARLY NEXT
WEEK WHILE IT MOVES WEST-NORTHWESTWARD TO NORTHWESTWARD AT 10 TO
15 KT, POSSIBLY BRINING INCREASING WINDS AND SEAS ALONG A SIMILAR
PATH TO KARINA.
SHORT-TERM TEHUANTEPEC
TODAY - NW 11-14, Seas SW 0-5.9 ft @ 18sec
TONITE - N 10-12, Seas SW 0-6.3 ft @ 17sec
SATURDAY - NNW 18-22, Seas SW 0-6.6 ft @ 15sec
SATURDAY NIGHT - N 12-15, Seas SW 0-6.6 ft @ 15sec
LONG-TERM TEHUANTEPEC
SUNDAY - N 12-15, Seas SW 0-6.6 ft @ 15sec
MONDAY - ESE 10-13, Seas SW 0-5.6 ft @ 14sec
TUESDAY - NNW 12-15, Seas SSW 0-4.5 ft @ 13sec
WEDNESDAY - N 11-14, Seas SW 0-4.7 ft @ 17sec
THURSDAY - N 4-5, Seas SW 0-4.5 ft @ 16sec